Granted Patent
Utility
US 6,519,013 · App. 08/945,758
Gray scale driving method for a birefringent liquid display service
Inventors:
Makoto Nagai, Takeshi Kuwata, Masao Ozeki
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Nov 7, 1997
Inventors
Makoto Nagai
Takeshi Kuwata
Masao Ozeki
Assignees (at issue)
ASAHI GLASS CO., LTD.
OPTREX Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.